Package org.jppf.management

Class ScriptedNodeSelector

java.lang.Object

org.jppf.scripting.BaseScriptEvaluator

org.jppf.management.ScriptedNodeSelector

All Implemented Interfaces:

Serializable, NodeSelector

public class ScriptedNodeSelector
extends BaseScriptEvaluator
implements NodeSelector

A node selector that uses a script to accept nodes. The script is evaluated using the javax.script.* API (JSR-223).

When the script is executed, it provides access to a variable named "nodeInfo" which is an instance of JPPFManagementInfo and represents the node.

Since:

5.2

Author:

Laurent Cohen

See Also:

• Serialized Form

Field Summary

Fields inherited from interface org.jppf.management.NodeSelector

ALL_NODES

Constructor Summary

Constructors

Constructor	Description
ScriptedNodeSelector(String language, File scriptFile)	Initialize this selector with the specfied language and script file.
ScriptedNodeSelector(String language, Reader scriptReader)	Initialize this selector with the specfied language and script reader.
ScriptedNodeSelector(String language, String script)	Initialize this selector with the specfied language and script.

Method Summary

Modifier and Type	Method	Description
boolean	accepts(JPPFManagementInfo nodeInfo)	Determine whether a node is accepted by this selector.

Methods inherited from class org.jppf.scripting.BaseScriptEvaluator

evaluate, getLanguage, getScript, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

ScriptedNodeSelector

public ScriptedNodeSelector(String language,
 String script)

Initialize this selector with the specfied language and script.

Parameters:

language - the language of the script to evaluate.

script - the script to evaluate.

ScriptedNodeSelector

public ScriptedNodeSelector(String language,
 Reader scriptReader)
                     throws IOException

Initialize this selector with the specfied language and script reader.

Parameters:

language - the language of the script to evaluate.

scriptReader - a reader from which to read the script to evaluate.

Throws:

IOException - if the script could not be read.

ScriptedNodeSelector

public ScriptedNodeSelector(String language,
 File scriptFile)
                     throws IOException

Initialize this selector with the specfied language and script file.

Parameters:

language - the language of the script to evaluate.

scriptFile - a file from which to read the script to evaluate.

Throws:

IOException - if the script could not be read.

Method Details

accepts

public boolean accepts(JPPFManagementInfo nodeInfo)

Description copied from interface: NodeSelector

Determine whether a node is accepted by this selector.

Specified by:

accepts in interface NodeSelector

Parameters:

nodeInfo - information on the node.

Returns:

true if the node is accepted, false otherwise.